Water storage capacity estimate in soil for the BAP (MT) microregion by alternative methodology
DOI:
https://doi.org/10.6008/SPC2179-6858.2017.001.0002Keywords:
Available Water, Soil Classification, Georeferencing, RepresentativenessAbstract
With the increase in world population comes the concern about the misuse of natural resources, such as the primary resource of water, essential for consumption and use in agriculture. Thus, there is an urgent need to study the regions where it is possible to use water as a source of irrigation for crops. This work was performed in the laboratory of Agrometeorology at the State University of Mato Grosso (UNEMAT), with the aid of ArcGIS 10® geostatistical software, which interpolates and specializes georeferenced data in order to form maps. The Upper Paraguay River Basin, belonging to the State of Mato Grosso, has 44 municipalities which are classified according to the type of soil, establishing three AWC standards: 30, 50 and 75. Overall, the area and representativeness for each municipality were determined, and 31 of these, representing over 41% of the whole territory, were shown to have AWC 75 soil. Only 8 municipalities were shown to have AWC 50 soil, with 11% of these being located in a flood zone, and 37 municipalities were shown to have AWC 30 soil, representing 48% of the total. Therefore, this region mostly has AWC 75 soil, demonstrating the presence of a soil with higher storage capacity and water availability.
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